There could also be some new characters introduced in the fanfiction. Maybe a powerful Pokémon trainer who is also after the same things as Team Rocket and Ash. This character could cause a lot of trouble for Ash and Team Rocket, forcing them to team up more seriously to overcome the challenges. Or perhaps a mysterious Pokémon that has the power to control the minds of other Pokémon, which would put Ash and Team Rocket in a very difficult situation.
Jessie and James are the obvious ones. They are the main members of Team Rocket. Jessie could be constantly trying to outdo Ash in Pokémon battles or contests of skill. James, on the other hand, might be more conflicted about having Ash around. He could secretly admire Ash's kindness towards Pokémon and start to have second thoughts about their Team Rocket activities.
One possible plot could be that Ash initially joins Team Rocket by mistake. He gets caught up in one of their schemes and ends up traveling with them for a while. Along the way, he tries to convince them to change their ways and use their skills for good. For example, he might show them how they could use their knowledge of Pokémon capture to help rescue Pokémon in danger instead of stealing them.
Obviously, Ash and Dawn are main characters. Ash is the hero who comes to Dawn's rescue. Dawn is the one in need of being saved from Team Rocket. And of course, Team Rocket themselves are also important characters in this fanfiction as they are the antagonists.
Yes, in some Team Rocket fanfictions, Ash can be depicted in various ways that might involve him having some sort of connection to Pokémon in a different light. Maybe he could be experimented on by Team Rocket to gain Pokémon - like abilities, or be transformed into a Pokémon - like being in a very creative and out - of - the - box fanfiction concept.
Obviously, Ash and Jessie, James, and Meowth from Team Rocket are the most popular. Ash is the main hero, and the Team Rocket trio is always causing trouble for him, so they are central to most fanfictions in this theme.
It could lead to some really unexpected and exciting plot twists. Ash's alignment with Team Rocket would completely change the dynamics of the story.
One possible motive could be that Team Rocket has constantly been causing trouble for Ash and his friends. They've been trying to steal his Pokémon time and time again, which might have finally pushed Ash over the edge.
Pikachu, of course. It's always been Ash's closest partner.
Ash is obviously one of the most popular characters. He's the main character of the Pokemon anime, and in fanfictions, his adventures with or against Team Rocket are always interesting. People like to see how he reacts to different situations that Team Rocket creates or how he manages to outwit them.
One possible plot could be Ash getting brainwashed by Team Rocket into thinking his Pokémon friends are his enemies. Then he starts to help Team Rocket in their schemes against other trainers. This would create a lot of conflict as his real friends try to snap him out of it.
The plot might involve a power struggle within Team Rocket. Ash and Misty could be brought in because they possess certain skills or knowledge. For example, Ash's bond with his Pokémon could be seen as a valuable asset. Misty's understanding of water - type Pokémon might also be desired. However, they soon realize that they are being used in a power play between different factions of Team Rocket, and they must decide which side to take or find a way to break free from the whole mess.